Cat Pumps
2531 Cat Pump Triplex Positive Displacement Plunger Pump 25 GPM 1200 PSI 316 Stainless Steel
2531 Cat Pump Triplex Positive Displacement Plunger Pump 25 GPM 1200 PSI 316 Stainless Steel
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2531 Cat Pump Triplex Positive Displacement Plunger Pump 25 GPM 1200 PSI 316 Stainless Steel
Cat Pumps 2531 Triplex Plunger Pump
The Cat Pumps 2531 is an industrial-duty, 25-frame positive displacement triplex plunger pump engineered for high-capacity, continuous-duty liquid transfer and high-pressure system operations. Constructed with precision-machined 316 stainless steel manifolds and 316 stainless steel valve assemblies, this pump offers exceptional corrosion resistance, making it an ideal choice for pumping demanding liquids such as reverse osmosis (RO) water, deionized (DI) water, salt water, and chemical solutions. The wet-end features highly polished, solid ceramic plungers that provide a true wear surface to minimize friction and significantly extend seal life in rigorous commercial and industrial environments.
Designed for robust performance and low-pulsation flow, the 2531 model delivers a maximum flow rate of 25 gallons per minute (GPM) while operating at up to 1,200 PSI. Driven at an optimal speed of 1025 RPM, it features a heavy-duty, die-cast aluminum crankcase with splash oil lubrication to ensure maximum load capacity and bearing life. The pump comes standard with NBR (Buna-N) seals and O-rings, allowing it to safely handle liquid temperatures up to 160°F (71°C). Its durable construction and versatile drive options—including belt or clutch drive configurations—make it a reliable, high-efficiency solution for multi-nozzle systems, process water distribution, and agricultural injection setups.
| Specification | Details |
| Model Number | 2531 |
| Manufacturer | Cat Pumps |
| Pump Type | Triplex Plunger Pump (Positive Displacement) |
| Manifold Material | 316 Stainless Steel |
| Max Flow Rate | 25.0 GPM (94.6 lpm) |
| Max Operating Pressure | 1200 PSI (83 bar) |
| Test PSI (Applied Pressure) | 1200 PSI (83 bar) |
| Max Pump Speed | 1025 RPM |
| Max Liquid Temp | 160°F (71°C) |
| Inlet Port Size | (2) 1-1/4" NPT(F) |
| Discharge Port Size | (2) 3/4" NPT(F) |
| Stroke | 1.516" (38.5 mm) |
| Bore | 1.260" (32 mm) |
| Crankcase Capacity | 84 oz (2.5 L) |
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